MUON/mapping/AliMpConstants.cxx

   1 // $Id$
   2 // Category: basic
   3 //
   4 // Class AliMpConstants
   5 // --------------------
   6 // Class for globally used constants definition.
   7 //
   8 // Authors: David Guez, Ivana Hrivnacova; IPN Orsay
   9
  10 #include <TMath.h>
  11 #include <TVector2.h>
  12
  13 #include "AliMpConstants.h"
  14
  15 ClassImp(AliMpConstants)
  16
  17 // static data
  18 const Double_t AliMpConstants::fgkLengthTolerance = 1e-04; // 0.1 mum;
  19 const Double_t AliMpConstants::fgkLengthStep = 1.; // 1 mm;
  20 const Int_t    AliMpConstants::fgkStartPadIndex = 1;
  21
  22 //_____________________________________________________________________________
  23 AliMpConstants::AliMpConstants()
  24   : TObject() {
  25 //
  26 }
  27
  28 //_____________________________________________________________________________
  29 AliMpConstants::~AliMpConstants() {
  30 //
  31 }
  32
  33 //_____________________________________________________________________________
  34 Bool_t  AliMpConstants::IsEqual(Double_t length1, Double_t length2)
  35 {
  36 // Compares lengths within the length tolerance.
  37 // ---
  38
  39   return TMath::Abs(length1 - length2) < fgkLengthTolerance;
  40 }
  41
  42
  43 //_____________________________________________________________________________
  44 Bool_t  AliMpConstants::IsEqual(const TVector2& v1, const TVector2& v2)
  45 {
  46 // Compares x, y vector coordinates within the length tolerance.
  47 // ---
  48
  49   return (  TMath::Abs(v1.X() - v2.X())
  50           + TMath::Abs(v1.Y() - v2.Y())) < 2.*fgkLengthTolerance;
  51 }